Less repetition,
more done.
Clean data, check text and handle everyday tasks.
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{
"name": "The49",
"tools": [
"JSON",
"CSV"
],
"free": true
}Your files,
stay with you.
Processed locally in your browser
Ready when you are
Free · No sign-up
Your content stays local
Inputs are never uploaded
In your language
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Start with a useful tool
Basic features are free. No account needed; inputs stay in your browser.
7 tools available
CSV deduplicator
Remove duplicate rows, keep their first occurrence and export CSV.
JSON formatter
Validate, format or minify JSON; copy or download the result.
Text statistics
Count Unicode characters, Han characters, words and lines.
URL encoder / decoder
Encode or decode UTF-8 URL parameters, including Unicode and special characters.
CSV ↔ JSON
Convert CSV and JSON in your browser, preserving strings and checking table structure.
Text comparison
Compare two texts by lines or characters, highlight differences and export results.
Static QR code
Generate a static QR code from a URL or text, preview it and download PNG or SVG.
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